Wrench.



4/ WIN WW1 P. WILSON.

WRENCH.

APPLICATION FILED MAR. 1, 1912.

1,045,924, Patented Dec.3, 1912.

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P. WILSON.

Y WRENCH.

I APPLICATION FILED MAR. l, 1912. 1 ,'O4;5,924. Patented Dec. 3, 1912.

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(OLUMBIA PLANOGIZAPH c0.. WASHINGTON, n c

PAUL WILSON, or BOWLING GREEN, KENTUCKY.

WRENCH.

Specification of Letters Patent.

Patented Dec. 3, 1912.

Application filed March 1, 1912. Serial No. 680,897.

To all whom it may concern:

Be it known that I, PAUL WVILsoN, a citizen of the United States, residing at Bowling Green, in the county of Varren and State of Kentucky, have invented certain new and useful Improvements'in Trenches, of which the following is a specification.

The present invention relates to a wrench designed to do in onkey-wrench, in a quick and easy manner.

An important object of this invention is to provide a wrench of the above mentioned character, embodying ratchet means to turn the clamping aws.

A further object provide novel means to reverse of the ratchet means.

A further object of my invention is to provide a wrench of the above mentioned character, which will save in its operation, both time and labor.

A further object of this invention is to provide a device of the above mentioned character, the several parts of which may be readily separated and assembled.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same, Figure 1 is a side view of the wrench, Fig. 2 is a bottom plan view of the same, Fig. 3 is a central vertical longitudinal section through the handle of the same, Fig. 4 is a central horizontal longitudinal section, through the handle, Fig. 5 is a side view of a connecting rod and head-section, the pawls being removed from such head section, Fig. 6 is a similar view, the connecting rod being broken away and the pawls shown in place, Fig. 7 is a detail section taken on line 7-7 of Fig. 3, Fi 8 is a vertical transverse section taken a u u a I on line 8-8 of Fig. 1, Fig. 9 1s a detail secof this invention is to the operation tion taken substantially on line 99 of Fig.-

3, Fig. pawls, pawl operation of the ratchet means.

In the drawings wherein for the sake of illustration, I have shown a preferred embodiment of my invention, the numeral 1 designates a handle of the wrench, provided with a slightly tapered axially extending opening 2, for receiving a correspondingly tapered connecting rod 3. This connecting 10 is a perspective view of one of the and,'F1g. 11 1s a simllar view of a the work of the ordinary controlling device for reversing the,

rod carries at its inner end an annular head formed of two head-sections 4. and 5, as shown. The head-section 4: is permanently connected with the rod 3 and preferably formed integral therewith. The head-section 5 is detachably connected with the rod 3 and for this purpose it is provided at its outer end with a tongue 6, fitting within an opening 7 formed in the connecting rod 3. The annular head is provided with shoulders S and 9. The shoulder S is engaged by the end of the handle 1 and the shoulder 9 by a sleeve or ferrule 10, which also engages an annular flange 11 formed upon the handle 1, as shown. The connecting rod 3 is screwthreaded at its outer end for receiving a nut 12. The head-section 4 is provided at its free end with a tongue 13, fittingjn a groove 14'. formed in the corresponding end of the head-section 5.

Rot-atably mounted within the annular head is a circumferentially reduced ratchetwheel 15 formed intermediate the ends of a spindle 16. The ratchet-wheel 15 is provided with teeth 17, adapted to be alternately engaged by pawls 18 and 19. These pawls are pivotally mounted in a recess 20 formed in the head-section t and have their outer ends rounded to fit in correspondingly shaped portions of the recess 20, as shown. These pawls 18 and 19 are urged into engagement with the teeth 17 by a leaf-spring 21, disposed in the opening 20 and held in place by spaced lugs 22. The pawls 18 and 19 carry at their inner or free ends laterally extending pins 23 and 24, to be engaged by a pawl shifter 25. This pawl shifter is substantially inverted T-shaped and has its shank portion disposed for operation in an opening 26, the same being held therein by a removable plate 27, which is secured to the head-section 4 by screws 28 or the like. As shown in Fig. 9, the pawl shifter is positioned so that one end of its head is disposed beneath the pin 23, to hold the pawl 18 out of operative engagement with the ratchetwheel 15. An oscillatory movement of the handle 1 will intermittently rotate the spindle 16 counter-clockwise. By moving the pawl shifter 25 to the right the pawl 19 will be held out of engagement with the ratchetwheel and the pawl 18 allowed to engage therewith, whereby an oscillatory movement of the handle 1 will intermittently rotate the spindle 16 in a reverse direction.

The spindle 16 is provided through one end portion with a transverse opening 29,

tions.

for receiving horizontal shanks 30, carrying at their ends opposed clamping jaws 81. These shanks 3O slidably engage each other and are longitudinally movable within the opening 29. The shanks 30 are provided upon corresponding faces with longitudinal grooves or openings 32, within which are disposed racks 33 having rigid connection with the shanks by suitable means. Disposed between and in engagement with the racks 33 is a pinion 3 1, which is rotatably mounted on a pin 35, carried by the spindle 16. It is thus seen that the shanks 30 are movable together in reverse direc The spindle 16 is provided with a screw-threaded axial opening 36, to receive a clamping screw 37, which engages the shanks 30 to lock them in adjustment at different desired positions. The clamping screw 37 is provided with a milled head 38 and inwardly of the same with a spacing boss or element 39, surrounding which is a loose holding ring or element 40, preferably milled, as shown. The numeral 41 designates a nut or other piece of work to be turned.

In the use of the device, the head 38 "is turned to move the clamping screw 37 outwardly, whereby the shanks 30 may be moved to bring the jaws 31 into proper position to engage the work, such as nut 41. The operator now grasps the holding element or ring 40, with the left hand and oscillates the handle 1 with his right hand. The pawl and ratchet mechanism will now turn the spindle 16 in either direction, depending upon the position of the pawl shifter 25, as hereinabove described.

By turning the nut 12 so that it is removed from the connecting rod 3, the handle 1 and its sleeve 10 may be removed from the rod 3, subsequent to which the head-section 5 may be removed from engagement with the co-acting head-section 4. The ratchetwheel 15 may be now removed together with the spindle 16. After this has been done the pawls 18 and 19 may be removed and also the leaf-spring 21. It is obvious that the several elements forming the device may be quickly and easily assembled.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim 1. A wrench of the character described,

comprising a spindle provided with a circumferentially reduced portion between the ends thereof, a handle carrying a two-part head having an opening to receive the reduced portion of the spindle so that the spindle is free to rotate but cannot move longitudinally with relation to the head, pawl and ratchet means disposed between the spindle and head, said spindle being provided near and spaced from one end thereof with a transverse opening, shanks carrying clamping jaws and longitudinally movably mounted within the transverse opening, said spindle being provided with a screw-threaded axial opening extending through one end of the spindle and leading into said transverse opening, and a clamping screw disposed within the screw-threaded axial opening.

2. In a wrench of the character described, a spindle provided with a transverse opening, shanks disposed in the transverse opening to move longitudinally within the same in slidable engagement with each other, clamping jaws carried by said shanks, racks connected with the shanks, a pinion disposed in engagement with the racks and rotatably mounted in the spindle, and means including a handle to turn the spindle.

3. In a wrench of the character described, a connecting rod, a head-section permanently connected therewith, a removable coacting head-section, a handle provided with a longitudinal opening for receiving the connecting rod, a sleeve carried by the handle to engage the head-sections for holding them together, removable means to prevent longitudinal movement of the handle in one direction on the connecting rod, a spindle provided with a ratchet-wheel which is disposed within the head-sections, pawls forming connecting means between the ratchet-wheel and head-section or sections, and clamping jaws carried by the spindle.

4. In a wrench of the character described, co-acting separable head-sections provided upon corresponding end portions with interfitting tongue and groove, a removable element engaging the opposite end portions of the head-sections to hold them together, a rotatable element disposed within the headsections, pawl and ratchet connecting means between the rotatable element and one headsection, and clamping jaws carried by the rotatable element.

In testimony whereof I affix my signature in presence of two witnesses.

PAUL WILSON.

Witnesses:

C. L. PARKER, JAMES L. CRAWFORD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

